Some anomalies in the genital organs of Bufo lentiginosus and their probable significance / by Helen Dean King.

  • Helen Dean King
Date:
1910
Catalogue details

Licence: In copyright

Credit: Some anomalies in the genital organs of Bufo lentiginosus and their probable significance / by Helen Dean King. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    matocytes and spermatids in various stages of development A careful study of many cysts failed to show a single instance in which the development of the germ-cells appeared to be abnormal. The cysts in the centre of the testes are not crowded quite as closely together as are the cysts in the testes of the normal male, and the stroma separating them is unusually thick; in all other respects the testes appear perfectly normal. Each testis was connected with the kidney by vasa efferentia, the genital ducts appearing normal. In this individual the Mullerian ducts were still present; but, although they were quite large and much convoluted, they showed no dilatations either in the anterior or in the posterior region. Interest in this individual centers in the structure of the rudimen- tary ovaries lying above and attached to the testis on either- side. A B Photographs of the right (A) and of the left (B) ovo-testis found in an adult Bufo lentiginosus. O, ovary; T, testis; C. A, corpora adiposa. The position of these bodies and the fact that no Bidder’s organs are to he found indicate that they have been produced, in part at least, from the cells which ordinarily form Bidder’s organ. Since in this individual the testes are somewhat shorter than those usually found in adult males, it seems probable that primordial germ-cells in the anterior part of the germinal ridge, which normally would have developed into spermatozoa, joined with the cells of Bidder s organ to form these rudimentary ovaries. The force, whatever its nature, which modified the development of the cells and brought about the formation of these rudimentary ovaries must have acted
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